SPECT imaging was performed with a triple-head IRIX camera (Philips Medical, Cleveland, USA) fitted with low-energy, general all-purpose parallel-holed collimators (spatial resolution 8.5 mm at 10 cm). Mean radius of rotation was 15.5 cm. Each camera covered 120° of the circular orbit. Scans were performed in continuous mode. Reconstruction of the images was performed with a MATLAB 6.5 (MathWorks) based program in 128×128 matrices (2.33 mm pixels and identical slice thickness) using standard filtered back projection with a low pass fourth-order Butterworth filter at 0.3 Nyquist (= 0.64 c-1). The imaging energy window was positioned at 143–175 keV. High-energy photons of 123I penetrated through the lead of the collimator, and Compton scatter in the scintillation crystal caused erroneous counts in the imaging energy window. A second energy window positioned at 184–216 keV was used to correct for these down- scattered photons in the imaging window. Before reconstruction, the projection images of the second energy window were subtracted from the imaging energy window with a weight of 1.1.
Triple head irix camera
Manufactured by Philips
Sourced in United States
The Triple-head IRIX camera is a laboratory instrument that captures high-quality, synchronized images from three separate image sensors. It is designed to provide researchers and scientists with a versatile imaging solution for their lab work.
Automatically generated - may contain errors
2 protocols using triple head irix camera
1
SPECT Imaging Protocol for Reducing Scatter Artifacts
2
Multimodal Imaging Evaluation of Brain Tumor
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
After bolus injection of 123 I-CLINDE, dynamic SPECT images were acquired with a triple-head IRIX camera (Philips Medical) for 2.5 h as previously described (10) , and weighted mean images were generated for region analysis.
A single-frame static PET acquisition was performed 20-40 min after intravenous injection of approximately 200 MBq of 18 F-FET on a 64-slice-CT Biograph TruePoint PET/CT scanner (Siemens). All PET scans were attenuation-corrected using low-dose CT performed immediately before the PET scan and were subsequently corrected for scatter and dead time. Images were reconstructed with an orderedsubsets expectation maximization 3-dimensional algorithm (6 itera-tions, 16 subsets) and a 5-mm gaussian filter. All patients fasted for at least 6 h before 18 F-FET injection.
T1-weighted MR imaging was performed on a 3-T MR Verio scanner (Siemens). Gadolinium was used in a dose of 0.1 mmol/kg of body weight (Multihance [Bracco] or Gadovist [Schering]). Patient 3 was rescanned using a CT scanner (Siemens) and a CT contrast agent containing 70 mL of iodine (350 mg/mL) (Omnipaque; GE Healthcare).
A single-frame static PET acquisition was performed 20-40 min after intravenous injection of approximately 200 MBq of 18 F-FET on a 64-slice-CT Biograph TruePoint PET/CT scanner (Siemens). All PET scans were attenuation-corrected using low-dose CT performed immediately before the PET scan and were subsequently corrected for scatter and dead time. Images were reconstructed with an orderedsubsets expectation maximization 3-dimensional algorithm (6 itera-tions, 16 subsets) and a 5-mm gaussian filter. All patients fasted for at least 6 h before 18 F-FET injection.
T1-weighted MR imaging was performed on a 3-T MR Verio scanner (Siemens). Gadolinium was used in a dose of 0.1 mmol/kg of body weight (Multihance [Bracco] or Gadovist [Schering]). Patient 3 was rescanned using a CT scanner (Siemens) and a CT contrast agent containing 70 mL of iodine (350 mg/mL) (Omnipaque; GE Healthcare).
About PubCompare
Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.
We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.
However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.
Ready to get started?
Sign up for free.
Registration takes 20 seconds.
Available from any computer
No download required
Revolutionizing how scientists
search and build protocols!